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Northrop Grumman Principal/Senior Principal Engineer Guidance, Navigation and Control--Space in Dulles, Virginia

At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work - and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.


Northrop Grumman's Space Systems is seeking a motivated candidate that will fill the position of a Principal or Senior Principal Spacecraft Guidance, Navigation, and Control (GNC) engineer. A spacecraft GNC engineer is responsible for contributing to the design, analysis, and testing of the GNC subsystem for the space vehicle. A spacecraft GNC engineer will work within the GNC subsystem team and is responsible for:

  • Designing, analyzing, and tuning spacecraft attitude and position control loops using time and frequency domain techniques

  • Designing, analyzing, and tuning sequential filters (e.g. Kalman filters) for attitude determination and relative navigation

  • Analyzing and testing the spacecraft GNC subsystem performance using simulations and other analytic tools

  • Implementing GNC algorithms in flight software and support flight software qualification testing

  • Performing analysis to support early design phase concept development including actuator sizing and placement, sensor selection and placement, and predicted performance assessments

  • Developing simulation models for sensors (e.g. star tracker, rate gyro, accelerometer, GPS, magnetometer, sun sensors), actuators (e.g. reaction wheel, torque bar, thruster, CMG), system dynamics (e.g. rigid body, multi-body, orbit mechanics, flexible models), and the space environment (e.g. atmospheric, solar radiation pressure, third-body gravity, geopotential)

  • Applying engineering principles, industry standards, company process, and knowledge of vehicle dynamics, aerodynamics, propulsion, classical/modern control, and estimation theory to perform tasks to advanced program/project goals

  • Documenting designs, analysis, and test results and create presentation materials

  • Presenting designs, analysis, and test results to internal and external customers

  • Working well within small- to medium-sized groups

This position can be offered at Principal or Senior principal level, depending on the years of experience each candidate offers. Please see the basic qualifications for details.


Basic Qualifications for a Principal Engineer GNC candidate:

  • BS Degree in Engineering, Physics, or Math.

  • At least 5 years experience in Control Systems Engineering, in any field.

  • US Citizenship is required for this position

Basic Qualifications for a Senior Principal Engineer GNC candidate:

  • BS Degree in Engineering, Physics, or Math.

  • At least 9 years experience in Control Systems Engineering, in any field.

  • US Citizenship is required for this position

Preferred Qualifications:

  • MS or higher in Engineering, Physics, or Math.

  • Spacecraft-specific engineering experience.

Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO/AA and Pay Transparency statement, please visit U.S. Citizenship is required for most positions.

Job Category : Engineering